﻿// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using NuGet.Packaging.Core;
using NuGet.Protocol.Core.Types;

namespace NuGet.PackageManagement.UI
{
	/// <summary>
	/// Contract for a generalized package metadata provider associated with a package source(s).
	/// </summary>
	internal interface IPackageMetadataProvider
	{
		/// <summary>
		/// Retrieves a package metadata of a specific version along with list of all available versions
		/// </summary>
		/// <param name="identity">Desired package id with version</param>
		/// <param name="includePrerelease">Filters pre-release versions</param>
		/// <param name="cancellationToken">Cancellation token</param>
		/// <returns>Package metadata</returns>
		Task<IPackageSearchMetadata> GetPackageMetadataAsync(PackageIdentity identity,
			bool includePrerelease, CancellationToken cancellationToken);

		/// <summary>
		/// Retrieves a package metadata of a highest available version along with list of all available versions
		/// </summary>
		/// <param name="identity">Desired package identity</param>
		/// <param name="includePrerelease">Filters pre-release versions</param>
		/// <param name="cancellationToken">A cancellation token</param>
		/// <returns>Package metadata</returns>
		Task<IPackageSearchMetadata> GetLatestPackageMetadataAsync(PackageIdentity identity,
			bool includePrerelease, CancellationToken cancellationToken);

		/// <summary>
		/// Retrieves a list of metadata objects of all available versions for given package id.
		/// </summary>
		/// <param name="packageId">Desired package Id</param>
		/// <param name="includePrerelease">Filters pre-release versions</param>
		/// <param name="includeUnlisted">Filters unlisted versions</param>
		/// <param name="cancellationToken">A cancellation token</param>
		/// <returns>Collection of packages matching query parameters</returns>
		Task<IEnumerable<IPackageSearchMetadata>> GetPackageMetadataListAsync(string packageId,
			bool includePrerelease, bool includeUnlisted, CancellationToken cancellationToken);

		/// <summary>
		/// Retrieves a package metadata of a specific version along with list of all available versions
		/// </summary>
		/// <param name="identity">Desired package id with version</param>
		/// <param name="includePrerelease">Filters pre-release versions</param>
		/// <param name="cancellationToken">Cancellation token</param>
		/// <returns>Package metadata</returns>
		Task<IPackageSearchMetadata> GetLocalPackageMetadataAsync(PackageIdentity identity,
			bool includePrerelease, CancellationToken cancellationToken);
	}
}